A kind of super-tough self-healing epoxy resin glass polymer material and preparation method thereof

A polymer material and epoxy resin technology, applied in the field of thermosetting materials, can solve the problems of high brittleness, difficult to recycle, and catalyst type glass-like polymer is not environmentally friendly, and achieves a controllable degree, good compatibility, and good self-healing. The effect of efficiency

Active Publication Date: 2022-04-08
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims at the disadvantages of the existing epoxy resin that it is difficult to recycle, the catalyst-type glass-like polymer is not conducive to environmental protection and is relatively brittle, and aims to provide a kind of comprehensive performance (such as mechanical performance, heat resistance, etc.) with good self-repairing efficiency High, recyclable catalyst-free super-tough epoxy resin glass polymer material and preparation method thereof

Method used

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  • A kind of super-tough self-healing epoxy resin glass polymer material and preparation method thereof
  • A kind of super-tough self-healing epoxy resin glass polymer material and preparation method thereof
  • A kind of super-tough self-healing epoxy resin glass polymer material and preparation method thereof

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Embodiment 1

[0040] A method for toughening catalyst-free epoxy resin glass polymers by using polysebacic anhydride and improving comprehensive properties such as elongation at break, impact toughness, self-repair efficiency and thermal stability, the specific steps are as follows:

[0041] 1. Preparation of Catalyst-free Super Tough Epoxy Glass Polymer

[0042] 1) Preheat 40g of epoxy resin at 120°C for 10min;

[0043] 2) Add 23.3g of glutaric anhydride and 14.1g of terephthalic acid to the epoxy resin until it is completely dissolved, then vacuumize and remove air bubbles, stir and mix evenly;

[0044] 3) 4g (in this embodiment, the content of polysebacic anhydride accounts for 10% of the mass ratio of epoxy resin) polysebacic anhydride is added to the system until it is uniformly mixed;

[0045] 4) Casting the mixture, curing at a curing temperature of 130° C. to 220° C. for 10 hours to obtain a catalyst-free super-tough self-healing epoxy resin glass polymer material.

[0046] A 5967...

Embodiment 2

[0049] A method for toughening catalyst-free epoxy resin glass polymers by using polysebacic anhydride and improving comprehensive properties such as elongation at break, impact toughness, self-repair efficiency and thermal stability, the specific steps are as follows:

[0050] 1. Preparation of Catalyst-free Super Tough Epoxy Glass Polymer

[0051] 1) Preheat 40g of epoxy resin at 120°C for 10min;

[0052] 2) Add 23.3g of glutaric anhydride and 14.1g of terephthalic acid to the epoxy resin until it is completely dissolved, then vacuumize and remove air bubbles, stir and mix evenly;

[0053] 3) 10g (in this embodiment, the content of polysebacic anhydride accounts for 25% of the mass ratio of epoxy resin) polysebacic anhydride is added to the system until it is uniformly mixed;

[0054] 4) Casting the mixture, and curing it at a curing temperature of 130° C. to 220° C. for 10 hours to obtain a catalyst-free super-tough epoxy resin glass polymer material.

[0055] A 5967 Inst...

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Abstract

The invention relates to a green, environment-friendly catalyst-free super-tough self-repairing epoxy resin glass polymer material and a preparation method thereof, belonging to the field of thermosetting materials. The invention provides a super-tough self-repairing epoxy resin glass polymer material, the epoxy resin glass polymer material is made of raw materials with the following mass ratio: 100 parts by weight of epoxy resin glass polymer material, 1-15 parts by weight of polysebacic anhydride. The present invention selects polysebacic anhydride as the toughening agent, and it will not phase-separate even if it is added with a catalyst-free epoxy resin glass polymer at a high content, which can greatly improve the toughness of the material without affecting its self-repairing performance; thus obtained Super-tough self-healing epoxy-like glass-polymer materials.

Description

technical field [0001] The invention relates to a green, environment-friendly catalyst-free super-tough self-repairing epoxy resin glass polymer material and a preparation method thereof, belonging to the field of thermosetting materials. Background technique [0002] Epoxy resin is one of the thermosetting resins with the largest demand and excellent comprehensive performance. Its cured product has the advantages of good dimensional stability, mechanical properties, and chemical resistance. It is often used as a substrate for coatings, adhesives, potting materials, and composite materials. Resin and other forms are widely used in aerospace, construction, electronic packaging materials and transportation and other fields. However, due to the high cross-linking density of the bulky covalent network structure formed after the epoxy resin is cured, it is very brittle and has poor resistance to cracks. Moreover, once the epoxy resin is cured and formed, it cannot be processed a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08L73/02C08G59/42C08G59/62
CPCC08L63/00C08G59/4207C08G59/4223C08G59/62C08L73/02
Inventor 孔米秋李爱吕亚栋黄亚江李光宪
Owner SICHUAN UNIV
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